and mut bound to mut methods on signals

packages/signals/src/rt.rs

@@ -151,6 +151,10 @@ impl<T: 'static> CopyValue<T> {
         self.value.try_write()
     }
 
+    pub fn write_unchecked(&self) -> GenerationalRefMut<T> {
+        self.value.write()
+    }
+
     /// Write the value. If the value has been dropped, this will panic.
     #[track_caller]
     pub fn write(&self) -> GenerationalRefMut<T> {
@@ -188,8 +192,8 @@ impl<T: 'static> PartialEq for CopyValue<T> {
     }
 }
 
-impl<T> Deref for CopyValue<T> {
-    type Target = dyn Fn() -> GenerationalRef<T>;
+impl<T: 'static + Clone> Deref for CopyValue<T> {
+    type Target = dyn Fn() -> T;
 
     fn deref(&self) -> &Self::Target {
         // https://github.com/dtolnay/case-studies/tree/master/callable-types
@@ -197,7 +201,7 @@ impl<T> Deref for CopyValue<T> {
         // First we create a closure that captures something with the Same in memory layout as Self (MaybeUninit<Self>).
         let uninit_callable = MaybeUninit::<Self>::uninit();
         // Then move that value into the closure. We assume that the closure now has a in memory layout of Self.
-        let uninit_closure = move || Self::read(unsafe { &*uninit_callable.as_ptr() });
+        let uninit_closure = move || Self::read(unsafe { &*uninit_callable.as_ptr() }).clone();
 
         // Check that the size of the closure is the same as the size of Self in case the compiler changed the layout of the closure.
         let size_of_closure = std::mem::size_of_val(&uninit_closure);